1. V. Nabokov, 1931, Notes on the Lepidoptera of the Pyrenees orientales andtheAriege. Entomologist 64: 255–257,268–271.
2. Nabokov’s trip and his relationship with staff at the Deutches Entomologisches Institut are described in A. Field, 1986, VN The Life and Art of Vladimir Nabokov, Crown Publishers Inc., New York
3. and B. Boyd, 1990, Vladimir Nabokov: the Russian Years, Chatto and Windus, London.
4. V. Nabokov, 1957, Butterflies, pp. 18–19 in P. Matthews (ed.), The Pursuit of Moths and Butterflies, Chatto and Windus, London.
5. W. Horn, 1936, Introduction to P. Matthew “On naval timber and Arboriculture”, Arb. Morph, taxon. Ent. 3: 233–237.